A cistern is normally filled with water in 10 hours but takes 5 hours longer to fill because of a leak in its bottom. If the cistern is full, the leak will empty the cistern in
Question A cistern is normally filled with water in 10 hours but takes 5 hours longer to fill because of a leak in its bottom. If the cistern is full, the leak will empty the cistern in Type multiple_choice Option 20 hours incorrect Option 40 hours incorrect Option 50 hours incorrect Option 30 hours correct […]










